Sudan
North Africa

- CIA World Factbook. Sudan - Introduction,  Geography,  People,  Government,  Economy,  Communications,  Transportation,  Military,  Transnational Issues.  (https://www.cia.gov/library/publications/the-world-factbook/geos/su.html)

 - Africa Guide. Travel Information. (http://www.africaguide.com/country/sudan/)

- Travel Notes™ guides visitors to essential travel information with detailed country backgrounds, reviewed web sites, and regular travel articles. (http://www.travelnotes.org/Africa/sudan.htm)

- The Index on Africa. The Norwegian Council for Africa. (http://www.afrika.no/index/Countries/Sudan/index.html)

- Sudan's importance as a member of OPEC. (http://www.eia.doe.gov/emeu/cabs/Sudan/Background.html)

Updated June 14, 2007